.app-header {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  padding: 0 24px;
  height: 64px;
  line-height: 64px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.header-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 100%;
}

.header-left {
  display: flex;
  align-items: center;
}

.app-title {
  color: white !important;
  margin: 0 !important;
  font-weight: 600;
}

.header-right {
  display: flex;
  align-items: center;
}

.status-indicator {
  display: flex;
  align-items: center;
  color: white;
  font-size: 14px;
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  margin-right: 8px;
}

.status-dot.online {
  background-color: #52c41a;
  box-shadow: 0 0 8px rgba(82, 196, 26, 0.5);
}

.status-text {
  color: white;
  font-weight: 500;
}

.user-info {
  display: flex;
  align-items: center;
  cursor: pointer;
  padding: 4px 8px;
  border-radius: 6px;
  transition: background-color 0.3s;
}

.user-info:hover {
  background-color: rgba(255, 255, 255, 0.1);
}

.username {
  color: white;
  margin-left: 8px;
  font-weight: 500;
}

/* 响应式设计 */
@media (max-width: 768px) {
  .app-header {
    padding: 0 16px;
  }
  
  .app-title {
    font-size: 18px !important;
  }
  
  .status-text {
    display: none;
  }
  
  .username {
    display: none;
  }
}
